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YI iGct9.lZ9 : P.fEG.L.29 3On lS:6843-1984 3.2 Single-Wheel Type Pipe Cutter ( see Fig. 2 ) - A hand tool for cutting steel and wrought iron pipes, having one cutter wheel, mounted on the fixed body and having a set of two rollers mounted upon the movable slide, through which the pressure is applied by means of a feed screw which works in opposition during the rotary cutting action around the pipe. a) b) cl d) e) Body - The main member which carries cutter wheel, slide and the feed screw. and carrying through rollers. on a a Slide - The movable set of rollers. member connected to the inner end of the feed screw the feed to cutter edge, mounted wheel wheel Feed Screw and HandleCuffer Wheel -A wheel pin. Wheel Pin - The means for applying wheel having a cutting hardened and free to revolve A case-hardened pin, upon which a cutter is mounted. i( CUTTER WHEEL WHEEL FIG. 2 SINGLE WHEEL TYPE PIPE CUTTER 3.3 Three-Wh_eel Type Pipe Coffer ( see Fig. 3 and 4 ) -A hand tool for cutting steel and wrought iron pipes, having three cutter wheels, of which two are mounted upon a fixed body, while a third, mounted upon a movable jaw, through which the cutting pressure is applied by means~of a feed screw which works in opposition during the rotary cutting action around the pipe. 4 b) cl d) 4 Body - The main member which member carries two cutter to the wheels, the slide and the feed screw. and carrying SlideThe movable a~cutter wheel. connected inner end of the feed screw, the feed to the cutter edge, mounted Feed Screw and Handle Coffer Wheel-A wheel pin. Wheel Pin -A The means for applying wheel having a cutting wheels. hardened case-hardened and free to revolve on a pin, upon which a cuttej wheel is mounted. UTTER WHEE FIG. 3 THREE-WHEEL TYPE PIPE CUTTER FOR CUTTING PIPE 9 TO 60 mm DIAMETER INCLUSIVE 2 IS:684301984 CUTTER WHEE FEED SCRE FIG. 4 THREE-WHEEL TYPE PIPE CUTTER FOR CUTTING PIPE 45 TO 315 mm DIAMETER INCLUSIVE 4. Material 4.1 The components of pipe cutters suitable examples are as fOllOWS: Components Cutter wheels shall be manufactured from suitable Material Steel having a carbon content from 0'8 to such as T90 with a maximum sulphur and content of 0'05 percent each conforming 1961 `Schedules for wrought steels engineering purposes ' Alloy pin steel 50CrlV23 according I.0 percent, phosphorus to IS : 1570for general steels. Some of the Rollers Wheel to IS : 1570-1961 14C14S14 ~of IS : 1570 (Part 3 )-1979 `Schedules for wrought steel: Part 3 Carbon and carbon manganese free cutting steels (firsf revision ) 1 lCl~OS25 of IS : 1570 ( Part 3 )-I979 Conformingto lS:2636-1972 `Wing nuts (first revision)' Feed screw Wing Handle nuts bolts and feed screw Conforming to property class 4.6 as specified in IS : 1367 ( Part 3 )-I979 `Technical supply conditions for threaded steel fasteners : Part 3 Mechanical properties and test methods for bolts, screws and studs with full loadability ( second revision ) ' Conforming ( Part 6 threaded and test ( second to property class 4 as specified in IS : 1367 )-I980 `Technical supply conditions for steel fasteners: Part 6 Mechanical properties methods' for nuts with specified pr_oof loads revision ) ' Nuts for handle bolts 4.2 Fork, connecting link, ordinary link, thrust washer, body, slide and ~handle, shall be manufactured from suitable grades of cast iron laid down in IS: 2107-1977 ` Specification for whiteheart for blackheart malleable malleable iron castings ( first revision ) ' and IS : 2108-1977 `Specification iron castings (first revision )`; or malleable cast iron conforming to ,tS : 2640-1977 ' Pearlite malleable cast iron castings (first revision) `. I ~5. Hardness to produce a hardness of 600 to 700 HlI 5.1 Cutter Wheels and Rollers - They shall be heat-treated (z 55 to 60 HRC). The hardness reading shall be taken as near as ~practicable to the cutting edge of the cutters and on working surface of the rollers. 5.2 Wheel Pins - They shall be suitably hardness of the case so produced shall 6. Manufacture, Workmanship case-hardened be 650 HV ( z to produce a case depth of 0.25 mm. 58 HRC ) Min. The and Finish seams and other defects. , sharp edges and corners 6.1 The forgings and castings shall be free from cracks, pits, blow holes, The body and slide shall be sound in casting without any casting defects. 6.2 The pipe cutters removed. shall be smooth and neatly finished, with all burrs, 3 6.3 The threads of all thethreqie$ !&tge of the cutter 6.4 The shall be propdily done. 6.5 The normal 6.6 The handle 6.7 The rollers move freely. 7. Tests 7.1 Materials for Use During Test pitch shall of serrations be straight cpmponents shall shall be cut full and true. for immediate use. Bevelling be ground/sharpened wheel shall readily on cutting and shall be 1.5 mm. normal any play use. or stiffness. The slide shall not slide out during without and cutter wheel shall be assembled with IS: 1536-1976 `Specification for 7.1.1 Link type pipe cutter - Cast iron pipes complying centrifugally cast ( spun ) iron pressure pipes for water, gas and sewage (second revision ) ' and IS : 1537-1976 `Specification for vertically cast iron pressure pipes for water, gas and sewage (first revision ) ' having a standard diameter nearest to the maximum capacity of the tool. 7.1.2 Sing/e-wheel type pipe cutter and three-wheel type pipe cutter - Steel tubes conforming to IS : 1239 (Part 1 )-I979 ` Specification for mild steel tubes, tubulars and other wrought steel fittings: revision ) ' or steel or wrought Part 1 ` Mild steel tubes (fourth iron pipes complying with IS : 3589-1966 `Electrically welded steel pipes for water, gas and sewage ' having a standard diameters nearest to the maximum capacity of the tool. 7.2 Cutting Test - The pipe cutter shall be mounted on a pipe of appropriate size adjusted and rotated to cuta light track in one line around the periphery. By manual operation of the means of adjustments provided, and with no further mechanical assistance, the maximum pressure shall be applied which will permit the tool to be rotated on the test pipes. With the pressure applied and reapplied as above, the tools shall cut and severe six pieces of the pipes corresponding to the maximum capacity of the pipe cutter. 7.2.1 On completion of the test, the tool shall show no deformation, undue wear, chipping or dulling of the cutting edges of the wheels,~cramping of adjustable feed member, loosening of handle, binding of feed mechanism, failure of cutter wheels to rotate freely on pins and misalignment of cutter wheels. 6. Marking - Pipe cutters shall be clearly and legibly stamped the tool, manufacturer's name, ,initials or recognised trade-mark. 9. Packing The cutter shall be delivered coated with a suitable with the nominal rust-proofing size, the range of material. cutter, the range of 9.3 The cutters shall cutter, manufacturer's be packed in a suitable carton name, initials~or trade-mark. bearing the type of pipe 10. Sampling - Unless otherswise agreed to between the purchaser and the supplier, the procedure given in IS : 2500 ( Part 1 )-1973 ` Sampling inspection tables : Part 1 Inspection by attributes and by count of defects (first revision ) ' shall be followed for inspection. The sampling plan for various characteristics shall be as given in 10.1 and 10.2. 10.1 For dimensions and manufacture, workmanship and finish, the sampling level Ill and acceptance quality level ( AQL ) 4 percent as given in Tables ( Part 1 )-1973 shall be followed. plan with inspection 1 and 2 of IS : 2500 level 10.2 For hardness and tests, the sampling plan with inspection level I and acceptable quality ( AQL) 2'5 percent as given in Tables 1 and 2 of IS : 2500 (Part u')-1973 shall be followed. EXPLANATORY NOTE This standard was first issued in 1973. This revision has been taken up in order to give the cross reference of this standard withy that of single wheel type pipe cutters IS : 10883-1984 ` Technical requirements for single-wheel type pipe cutters ' have also been incorporated. While preparing this standard, assistance has been derived from BS 1857-1952 ` Pipe cutters ' issued by British Standards Institution, and the standards Issued on the subject by Chief Inspectorate of General Stores, Ministry of Defence, Government of India. 4 Prlnted at New lndla Prlntbg Press, Khurja, India